In this video, we'll diagnose a 1960s Ampeg Gemini VI and determine if it's a diamond in the rough, or ready for the trash heap. I'll also show you how to measure output transformer turns ratio and how to calculate the primary impedance for a given output transformer at a given secondary impedance. That's right...it's MATH TIME!
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STUFF I USE
-5A Variac: http://amzn.to/2FNWthU
-Fluke 87: http://amzn.to/2DwHjvr
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BOOKS
-RCA TUBE MANUAL http://amzn.to/2GOBVqS
-DESIGN AND CONSTRUCTION OF TUBE AMPLIFIERS: http://amzn.to/2HSNMne
-Merlin's Preamp Book: http://amzn.to/2DK5tmt